/* 
 * Copyright (C) 2014 Apocalypse Laboratories.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301  USA
 */
package net.apocalypselabs.symat;

import java.awt.Font;
import javax.swing.JOptionPane;
import javax.swing.text.DefaultCaret;

/**
 *
 * @author Skylar
 */
public class Interpreter extends javax.swing.JInternalFrame {

    private final CodeRunner cr = new CodeRunner();
    /**
     * Creates new form Interpreter
     */
    public Interpreter() {
        initComponents();
        int font_size = 12;
        try {
            font_size = Integer.valueOf(PrefStorage.getSetting("shell-fontsize"));
        } catch (Exception ex) { }
        jTextArea1.setFont(new Font(Font.MONOSPACED, Font.PLAIN, font_size));
        jTextArea1.setLineWrap(true);
        jTextArea1.setWrapStyleWord(true);
        jTextArea1.setText(">>");
        jTextField1.requestFocus();
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jScrollPane1 = new javax.swing.JScrollPane();
        jTextArea1 = new javax.swing.JTextArea();
        jTextField1 = new javax.swing.JTextField();
        jButton1 = new javax.swing.JButton();
        jLabel1 = new javax.swing.JLabel();
        jMenuBar1 = new javax.swing.JMenuBar();
        jMenu2 = new javax.swing.JMenu();
        jMenuItem1 = new javax.swing.JMenuItem();

        setClosable(true);
        setIconifiable(true);
        setMaximizable(true);
        setResizable(true);
        setTitle("Shell");
        setFrameIcon(new javax.swing.ImageIcon(getClass().getResource("/net/apocalypselabs/symat/icons/shell.png"))); // NOI18N

        jTextArea1.setEditable(false);
        jTextArea1.setColumns(20);
        jTextArea1.setFont(new java.awt.Font("Courier New", 0, 15)); // NOI18N
        jTextArea1.setRows(5);
        jTextArea1.setTabSize(4);
        DefaultCaret caret = (DefaultCaret)jTextArea1.getCaret();
        caret.setUpdatePolicy(DefaultCaret.ALWAYS_UPDATE);
        jScrollPane1.setViewportView(jTextArea1);

        jTextField1.addKeyListener(new java.awt.event.KeyAdapter() {
            public void keyTyped(java.awt.event.KeyEvent evt) {
                jTextField1KeyTyped(evt);
            }
        });

        jButton1.setText("Run");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jLabel1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabel1.setText(">>");

        jMenu2.setText("Edit");

        jMenuItem1.setText("Font size...");
        jMenuItem1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItem1ActionPerformed(evt);
            }
        });
        jMenu2.add(jMenuItem1);

        jMenuBar1.add(jMenu2);

        setJMenuBar(jMenuBar1);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 422, Short.MAX_VALUE)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jLabel1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jTextField1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jButton1))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 231, Short.MAX_VALUE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
                        .addComponent(jLabel1, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                        .addComponent(jTextField1, javax.swing.GroupLayout.Alignment.LEADING)))
                .addGap(2, 2, 2))
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
        doRunCode();
    }//GEN-LAST:event_jButton1ActionPerformed

    private void jTextField1KeyTyped(java.awt.event.KeyEvent evt) {//GEN-FIRST:event_jTextField1KeyTyped
        if (evt.getKeyChar() == '\n') {
            doRunCode();
        }
    }//GEN-LAST:event_jTextField1KeyTyped

    private void jMenuItem1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem1ActionPerformed
        try {
            int size = Integer.parseInt(JOptionPane.showInternalInputDialog(this,
                    "New font size (8-36):",
                    "Font Size",
                    JOptionPane.QUESTION_MESSAGE));
            if (size >= 8 && size <= 36) {
                jTextArea1.setFont(new Font(Font.MONOSPACED, Font.PLAIN, size));
                PrefStorage.saveSetting("shell-fontsize", size+"");
            }
        } catch (Exception ex) {

        }
    }//GEN-LAST:event_jMenuItem1ActionPerformed

    private void doRunCode() {
        String code = jTextField1.getText();
        jTextArea1.append(" "+code+"\n");
        try {
            jTextArea1.append(cr.evalString(code).toString()+"\n");
        } catch (NullPointerException ex) {
            
        }
        jTextArea1.append(">>");
        jTextField1.setText("");
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JMenu jMenu2;
    private javax.swing.JMenuBar jMenuBar1;
    private javax.swing.JMenuItem jMenuItem1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextArea jTextArea1;
    private javax.swing.JTextField jTextField1;
    // End of variables declaration//GEN-END:variables
}